Calibration and validation data for surface moisture in the McMurdo Dry Valleys

This skript shows calibration and validation data for surface moisture modelling in the McMurdo Dry Valleys in a descriptive way.

Read in iButton data for the different valleys.

Get DEM to write elevation into the location data

Project iButton data to EPSG 3031

##            valley n_locations
## 1   Alatna_Valley           8
## 2   Hidden_Valley           6
## 3            iBut          94
## 4 McKelvey_Valley          16
## 5   Taylor_Valley           6
## 6 Victoria_Valley          12
## 7   Wright_Valley          22

Display locations

Use only data, where temperature is higher than -1°C

To see the iButton logger location names, hold cursor over point.

Hidden_Valley

Wright_Valley

McKelvey_Valley

Victoria_Valley

Alatna_Valley

Taylor_Valley

TV-S-500 seems to be below a snow patch in a shady corner and is fully saturated.

Automatic Weather Station Data

Lake Fryxell Met Station

Dataset can be downloaded here: Lake Fryxell

##   ï..DATASET_CODE METLOCID        DATE_TIME    RH RH_COMMENTS
## 1         FRLM_RH     FRLM 12/07/1993 14:10 59.76            
## 2         FRLM_RH     FRLM 12/07/1993 14:20 59.53            
## 3         FRLM_RH     FRLM 12/07/1993 14:30 59.16

##   ï..DATASET_CODE METLOCID        DATE_TIME SOILT0CM SOILT5CM SOILT10CM
## 1      FRLM_SOILT     FRLM 11/30/1994 14:40    -1.35       NA        NA
## 2      FRLM_SOILT     FRLM 11/30/1994 15:00    -2.68       NA     -6.44
## 3      FRLM_SOILT     FRLM 11/30/1994 15:20    -2.82       NA     -6.57
##   SOILT_COMMENTS
## 1               
## 2               
## 3

Years that are covered in this dataset are:

Let’s for now take a look at the year 2019 and focus on Relative Humidity and the soil temperature at surface level.